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Vacuum pump flap valve material

Discussion in 'Electronic Repair' started by N_Cook, Sep 26, 2012.

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  1. N_Cook

    N_Cook Guest

    Used as external source of vacuum for an OKI SA4 desolder station but not
    necessarily OKI.
    Perhaps 20 to 30 years old. Simple 25W Japanese motor driving epicyclic
    rotary to reciprocatory
    bearing with linkage to a disc of rubber . Other side of the rubber a
    chamber with a Al closure plate with 2 holes and matching cover with a
    gasket between. This gasket has what was probably 2 simple flaps profiled
    from the disc which has disintegrated, seating over the hole/well
    combinations in Al disc and cover. The material now looks like , and has the
    structural integrity of , translucent orangey-brown gelatine sheet. At the
    moment I'm profiling a disc of silicon rubber, but if that does not work ,
    anyone have any idea what the original material was?
  2. hr(bob)

    hr(bob) Guest

    Where do you get this stuff from, it is unique to the UK?
  3. N_Cook

    N_Cook Guest

    Seems to work with silicone rubber.
    I suspect the original material was that translucent orange-brown
    formulation of latex they use for baby feeding bottle teats
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